ci2 starts bisection 2023-09-24 04:32:28.575247557 +0000 UTC m=+936880.604421660 bisecting fixing commit since 748fd0d9ca0facefe5ec81770f620981fe280489 building syzkaller on 924768299f97ac88b84f09eb979919305c8af5bb ensuring issue is reproducible on original commit 748fd0d9ca0facefe5ec81770f620981fe280489 testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b6220aea6d6d88b90e68020994d5c45505c44768ab15eca44d8b850044288b0f all runs: crashed: general protection fault in fuse_atomic_open representative crash: general protection fault in fuse_atomic_open, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b0d0c34d501fc63b6d553624d9425eab14f675efd433ab771d05be0082d0d53 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4920 full=6161 leaves diff=240 split chunks (needed=false): <240> split chunk #0 of len 240 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f236a233e8702492fdd2f5af4b383357e3ad6ec7cc8f5e1111f7fe702e353c3 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 523a4bc802ce293a9b2bb9c802df4830ef9264a05c341ad565c0c7f41786f787 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 466a1e02434e24092bad9c93e0cfc3173d73fe86d0a010f166c4a73bf41885fd all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a62ec940622b47c606d6722e6c1cd0b2727924bd5d1bf72ad9441b0021e5fefb all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 748fd0d9ca0facefe5ec81770f620981fe280489 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 748fd0d9ca0facefe5ec81770f620981fe280489: net/socket.c:1172: undefined reference to `wext_handle_ioctl' net/socket.c:3366: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 48 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing current HEAD ea586874d2f9e501ef84b7e55036fc8965397d5d testing commit ea586874d2f9e501ef84b7e55036fc8965397d5d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09fc4571ef7573997a3bd689bb7a45e3139e9535549071a7ebcd8783fc56de09 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open representative crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 45m6.195837346s (build: 22m22.706615414s, test: 20m51.499403021s) crash still not fixed or there were kernel test errors commit msg: Merge 5.15.131 into android13-5.15-lts crash: BUG: unable to handle kernel NULL pointer dereference in fuse_atomic_open BUG: kernel NULL pointer dereference, address: 0000000000000039 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 110982067 P4D 110982067 PUD 1109ca067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 352 Comm: syz-executor.0 Not tainted 5.15.131-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:fuse_atomic_open+0x49/0x120 fs/fuse/dir.c:870 Code: 89 e5 41 57 45 89 c7 41 56 49 89 d6 41 55 49 89 fd 41 54 49 89 f4 53 31 db 48 83 ec 10 f7 06 00 00 00 10 75 7a f6 c1 40 74 08 <49> 83 7c 24 30 00 74 1a 48 89 de 4c 89 f7 e8 94 e5 ea ff 48 83 c4 RSP: 0018:ffffc900003a3c80 EFLAGS: 00010202 RAX: 0000000000000009 RBX: 0000000000000009 RCX: 0000000000008241 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88810b13f788 RBP: ffffc900003a3cb8 R08: 0000000000000009 R09: ffff88810918dc00 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000009 R13: ffff88810b13f400 R14: ffff888101baf780 R15: 0000000000008000 FS: 00007f225ed0a6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000039 CR3: 00000001023ff000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: atomic_open fs/namei.c:3255 [inline] lookup_open fs/namei.c:3363 [inline] open_last_lookups fs/namei.c:3462 [inline] path_openat+0x7d7/0x1230 fs/namei.c:3669 do_filp_open+0xb1/0x150 fs/namei.c:3699 do_sys_openat2+0x9c/0x250 fs/open.c:1234 do_sys_open fs/open.c:1250 [inline] __do_sys_creat fs/open.c:1324 [inline] __se_sys_creat fs/open.c:1318 [inline] __x64_sys_creat+0x46/0x60 fs/open.c:1318 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f225f1a8b29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f225ed0a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f225f2c8050 RCX: 00007f225f1a8b29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f225f1f447a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f225f2c8050 R15: 00007fffdf07b128 Modules linked in: CR2: 0000000000000039 ---[ end trace c901dd020a99c3e2 ]--- RIP: 0010:fuse_atomic_open+0x49/0x120 fs/fuse/dir.c:870 Code: 89 e5 41 57 45 89 c7 41 56 49 89 d6 41 55 49 89 fd 41 54 49 89 f4 53 31 db 48 83 ec 10 f7 06 00 00 00 10 75 7a f6 c1 40 74 08 <49> 83 7c 24 30 00 74 1a 48 89 de 4c 89 f7 e8 94 e5 ea ff 48 83 c4 RSP: 0018:ffffc900003a3c80 EFLAGS: 00010202 RAX: 0000000000000009 RBX: 0000000000000009 RCX: 0000000000008241 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88810b13f788 RBP: ffffc900003a3cb8 R08: 0000000000000009 R09: ffff88810918dc00 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000009 R13: ffff88810b13f400 R14: ffff888101baf780 R15: 0000000000008000 FS: 00007f225ed0a6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000039 CR3: 00000001023ff000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 e5 mov %esp,%ebp 2: 41 57 push %r15 4: 45 89 c7 mov %r8d,%r15d 7: 41 56 push %r14 9: 49 89 d6 mov %rdx,%r14 c: 41 55 push %r13 e: 49 89 fd mov %rdi,%r13 11: 41 54 push %r12 13: 49 89 f4 mov %rsi,%r12 16: 53 push %rbx 17: 31 db xor %ebx,%ebx 19: 48 83 ec 10 sub $0x10,%rsp 1d: f7 06 00 00 00 10 testl $0x10000000,(%rsi) 23: 75 7a jne 0x9f 25: f6 c1 40 test $0x40,%cl 28: 74 08 je 0x32 * 2a: 49 83 7c 24 30 00 cmpq $0x0,0x30(%r12) <-- trapping instruction 30: 74 1a je 0x4c 32: 48 89 de mov %rbx,%rsi 35: 4c 89 f7 mov %r14,%rdi 38: e8 94 e5 ea ff call 0xffeae5d1 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c4 .byte 0xc4